MAPLE BUGS, 421 



©yes relatively large, oblong, and bright red-brown in color. The larvte varied in 

 size from one-twentieth to one-eighth inch in lengtli, and so far as I could discover 

 there were but two larval molts. Scattered about over the leaves were small, round, 

 translucent green eggs rather larger than a Portulaca seed. The pupal form was 

 precisely like the larval, except in point of size and relative development of the 

 wing-pads. When the under side of the leaf was turned up for examination the 

 bugs, large and small, would dart on their hair-like legs to the reversed surface, 

 moving with the greatest rapidity and sometimes dropping to the ground in their 

 evident desire to escape observation. The final transformation occurred about the 

 middle of May, after which the companies dispersed. The species is a pretty one, 

 although, from the glassy texture of the entire hemelytra and the general delicacy of 

 coloring, it always has a somewhat immature appearance. 



This bug happily lacks the disagreeable odor so common to the species of this 

 suborder and which pertains even to most of its closest allies. 



Absence from Kirk wood after the middle of May somewhat interrupted my obser- 

 vations on this insect. On my return, early in June, only a few of the mature bugs 

 remained among the curled and torn leaves on which they had developed. Occa- 

 sionally throughout the summer a specimen would.be met with, as often on the foliage 

 of any other tree as on maple, but there was no second brood. This species, unlike 

 Capsus oblineatus, is never to my knowledge found on flowers. It probably secretes 

 itself early in the season, and becomes dormant until the following spring. 



The only remedial applications experimented with were Pyrethrum powder and air- 

 slacked lime, both of which were measurably effective, judging by the small scale 

 on which they were tried. 



Mr. P. R. Ubler gives the following description of this insect: 



Lygns monachus n. sp. — Long-oval, pale green or testaceous, coarsely punctate 

 above, sericeous pubescent. Face convex, highly polished, bald ; base of vertex with 

 a longitudinal impressed line, towards which a similar line runs obliquely each side 

 from the inner corner of the eyes ; anteuute sparsely and minutely pubescent, basal 

 joint thickest, a little longer than the head, tapering at base, second joint thrice as 

 long as the basal, infuscated and a little enlarged towards the tip, third and fourth 

 setaceous, together not as long as the second. Prouotum highly polished, convex, 

 coarsely punctate in transverse wavy lines, each side with a dark brown vitta or 

 long spot; lateral margin smooth, callous at base, the. humeral angles subacute, cal- 

 losities prominent, convex, almost confluent on the middle ; lateral flap of pronotum 

 irregularly punctate. Pectoral pieces pale, impunctate. Legs pale green, feebly 

 pubescent ; apex of posterior femur usually with one or two fuscous bands, tip of 

 tarsi and the nails black. Scutellum moderately convex, excavated at base, trans- 

 versely obsolete-punctate, more or less infuscated. Corium coarsely, transversely 

 rostrate-punctate, the clavers more or less infuscated, sometimes with all but the 

 margins covered with dark brown ; corium usually with a transverse, dark-brown 

 arc next the posterior border ; cuneus long and wide, the incised base fuscous, and the 

 inner margin brown ; membrane pale testaceous, with two or more dark clouded spots, 

 the inner submargin of the principal areole, a spot at its tip, and the base next the 

 cuneus all more or less fuscous. Venter pale greenish. Length of body, female, 

 5""" ; to tip of wing-covers, 7™™ ; width of pronotum 2™™. 



Ma/e.— Length of body, 4™'"; to tip of wing-covers, 5i™™; width of prouotum, 



This has proved to be a very common insect in various localities. 



Mr. Cassino collected numerous specimens around Peabody, Mass. Mr. Bolter 

 sent to me a pair from Illinois and Missouri, and I have taken it from alders, maples, 

 and many other kinds of small trees and shrubs on Cape Ann, Massachusetts, also 

 near the base of the White Mountains, and in New Hampshire, and near Quebec, 

 Canada. 



Mr. Forbes has also forwarded to me specimens from near Normal, 111. 



